APA

Kovan D., . (2001). Secrets of numerology. London: Dorling Kindersley.

Chicago

Kovan Dawne, . 2001. Secrets of numerology. London: Dorling Kindersley.

Harvard

Kovan D., . (2001). Secrets of numerology. London: Dorling Kindersley.

MLA

Kovan Dawne, . Secrets of numerology. London: Dorling Kindersley. 2001.